Masek, Brooke Heather
2011-06-17T00:39:29Z
2011-06-17T00:39:29Z
2011-03
http://hdl.handle.net/1794/11288
xiii, 136 p. : ill. (some col.)
The Demosion Sema ["Public Tomb"] was an area of the Kerameikos in Athens that in the 5th and 4th centuries BCE functioned as the state burial ground--the repository of mass graves for those who had lost their lives in war. In an annual ritual known as the patrios nomos ["the ancestral custom"], the war-dead were eulogized and publicly mourned. Their mass graves [ polyandria ] were regularly marked by marble monuments with reliefs of soldiers in combat, under which the names of the dead were listed according to their tribe, but without demotic or patronymic information. This thesis explores the various aspects of the patrios nomos and the iconography of the funerary monuments of the state burial ground. By analyzing features of the ritual, such as the attendant funeral orations ( epitaphios logos ), and aspects of the imagery found in the polyandria , we are able to learn not only about the function of the Demosion Sema within the Athenian polis but also how Athenians mourned and remembered their war-dead within the context of a democratic ideology.
Committee in charge: Jeffrey M. Hurwit, Chairperson;
James Harper, Member;
Christopher Eckerman, Member
en_US
University of Oregon
University of Oregon theses, Dept. of Art History, M.A., 2011;
Greece
Archaeology
Art history
Classical studies
'Kalos thanatos': The ideology and iconography of the Demosion Sema at Athens in the 5th and 4th centuries BCE
Ideology and iconography of the Demosion Sema at Athens in the 5th and 4th centuries BCE
Thesis

Dudeck, Theresa Robbins
2012-04-16T22:19:05Z
2014-12-29T21:12:31Z
2011-12
http://hdl.handle.net/1794/12144
xii, 266 p.
Keith Johnstone has spent almost fifty years teaching and developing improvisational theatre methods for the classroom and for performance. His Impro System (i.e., the term used by the author to designate Johnstone's theories, pedagogy, techniques, exercises, games, and terminology) encourages spontaneous, collaborative creation using the intuitive, uncensored imaginative responses of the participants. The Impro System has influenced theatre education worldwide and is applied to fields as diverse as corporate training, creative therapy, animation, and Zen Buddhism. Yet this is the first comprehensive critical study on Johnstone's life and career.
Until now, Johnstone's story has been told primarily from a third person perspective, in passing, and without a critical lens. Utilizing personal interviews with Johnstone and with many of his colleagues and students, archival resources, and the author's observations from six international Johnstone workshops, contextualization is possible in this investigation. Moreover, theories of pedagogy such as Paulo Freire's "problem-posing" pedagogy give this document a structural and conceptual frame. This study is a journey through the corporeal spaces that have served as Johnstone's transformative "classrooms" but also into the conceptual spaces which inform Johnstone's own radical pedagogy and approach to artistic work.
The chapters take the reader from Johnstone's less-than-ideal childhood through his exciting ten-year residency at The Royal Court Theatre in London; into the classrooms and onto the stages of Europe with his celebrated impro troupe, The Theatre Machine; off to Canada and into his laboratory-like classrooms at the University of Calgary; and inside the theatre-as-classroom environment of Johnstone's avant-garde, impro-based Loose Moose Theatre Company, the company that launched Johnstone's Theatresports. Finally, the concluding chapter reveals how Johnstone and his Impro System continue to influence various artists worldwide and how Johnstone's pedagogy has evolved to accommodate not only the students in his workshops but his notion of the ideal classroom. This study makes a strong argument for Johnstone's inclusion as an innovative teacher into the canon of contemporary theatre practice.
Committee in charge: Dr. Sara Freeman, Chair;
Dr. Theresa J. May, Member;
Dr. Jennifer Schlueter, Member;
Dr. Ann Tedards, Outside Member
en_US
University of Oregon
University of Oregon theses, Dept. of Theater Arts, Ph. D., 2011;
rights_reserved
Biographies
Theater
Communication and the arts
Social sciences
Johnstone, Keith
Improvisational theatre
Theatre pedagogy
Keith Johnstone's Search for the Ideal Classroom: A Critical Biography
Thesis

Hall, Damara L., 1977-
2011-06-15T19:08:31Z
2011-06-15T19:08:31Z
2011-03
http://hdl.handle.net/1794/11272
ix, 100 p. : ill. (some col.)
In 1972 ceramist Ken Price (b. 1935) embarked on Happy's Curios , a six-year long project that he described as an homage to Mexican folk pottery. It ended with a 1978 exhibition of the same name held at the Los Angeles County Museum of Art. The project and the related exhibition integrated and critically investigated three common classifications of cultural objects: fine art, folk art, and craft. This thesis argues that the Happy's Curios project deploys these categories in a manner that challenges and deconstructs how they are used. The thesis offers a critical history of the Happy's Curios project and its reception in order to interrogate how the project engages the taxonomy of fine art, folk art, and craft, as well as its relevance to a broader art historical context.
Committee in charge: Kate Mondloch, Chair;
Sherwin Simmons, Member;
Brian Gillis, Member
en_US
University of Oregon
University of Oregon theses, Dept. of Art History, M.A., 2011;
Ceramics
Craft
Fine art
Folk art
Price, Kenneth, 1935- Happy's Curious
Fine arts
Art criticism
Art history
Happy's Curios
Ken Price's "Happy's Curios" (1972--1978): A critical history
Thesis

Greenwood, Cary A.
2012-02-29T00:22:50Z
2012-02-29T00:22:50Z
2011-09
http://hdl.handle.net/1794/11976
xviii, 197 p.
Whistleblowing has been a topic of media interest since the Vietnam War, and it continues to resonate strongly with the public. Several well-publicized whistleblowers have done much more than catch the attention of the world media. They arguably have changed the world. Whistleblowing refers to the reporting of illegal, wasteful, or unethical activities (i.e., wrongdoing) by current and former employees of an organization. Triggered by several highly publicized corporate financial failures, the Sarbanes-Oxley Act of 2002 requires publicly traded companies to provide an anonymous channel for employees to report financial wrongdoing and provides protection for those who do.
Using resource dependence perspective and relationship management theory, this study uses e-mail to distribute an online survey to top-ranking public relations executives in the Fortune 1000 corporations to identify what role public relations executives have played in developing and publicizing anonymous whistleblowing channels, their knowledge of wrongdoing in their own organizations and elsewhere, their attitudes and actions related to the wrongdoing, the consequences of their actions, and their relationships with their organizations.
The study finds that only one-fifth of respondents helped develop the required anonymous communication channel, but two-thirds helped publicize it; almost one-half of respondents are aware of wrongdoing in their corporations or in other organizations, and two-thirds of those report such activities; those who report wrongdoing do so through internal channels within the corporation, with one exception; few who report wrongdoing suffer retaliation; and the vast majority enjoy positive relationships with their organizations.
However, a small number of respondents experienced retaliation, and the research points to a broader exploration of this topic among public relations personnel within Fortune 1000 corporations to determine to what extent status, relationships, and benefits such as the "golden handcuffs" influence whistleblowing. Future research on whistleblowing and ethics in public relations is warranted.
Committee in charge: Dr. Patricia A. Curtin, Co-Chairperson;
Dr. H. Leslie Steeves, Co-Chairperson;
Dr. James K. Van Leuven, Member;
Dr. Michael Russo, Member;
Dr. Anne Parmigiani, Outside Member
en_US
University of Oregon
University of Oregon theses, School of Journalism and Communication, Ph. D., 2011;
rights_reserved
Marketing
Communication
Management
Journalism
Communication and the arts
Social sciences
Public relations
Resource dependence
Relationship management
Business ethics
Evolutionary theory
Public relations theory
Relationship management theory
Resource dependence perspective
Whistle blowing
Killing the Messenger: A Survey of Public Relations Practitioners and Organizational Response to Whistleblowing after Sarbanes-Oxley
Survey of Public Relations Practitioners and Organizational Response to Whistleblowing after Sarbanes-Oxley
Thesis

Quigley, Mark
Noyce, Jennifer
2014-09-29T17:50:59Z
2014-09-29T17:50:59Z
2014-09-29
http://hdl.handle.net/1794/18406
This dissertation corrects the notion that fiction written in the late 1920s through the early 1940s fails to achieve the mastery and innovation of high modernism. It posits late modernism as a literary dispensation that instead pushes beyond high modernism's narrative innovations in order to fully express individuals' lived experience in the era between world wars. This dissertation claims novels by Elizabeth Bowen, Evelyn Waugh, and Samuel Beckett, as exemplars of a late modernism characterized by invocation and redeployment of conventionalized narrative forms in service of fresh explorations of the dislocation, inauthenticity, and alienation that characterize this era. By deforming and repurposing formal conventions, these writers construct entirely new forms whose disfigured likenesses to the genres they manipulate reveals a critical orientation to the canon.
These writers' reconfigurations of forms--including the bildungsroman, the epistolary novel, and autobiography--furthermore reveal the extent to which such conventionalized genres coerce and prescribe a unified and autonomous subjectivity. By dismantling these genres from within, Bowen, Waugh, and Beckett reveal their mechanics to be instrumental in coercing into being a notion of the subject that is both limiting and delimited. These authors also invoke popular forms--including the Gothic aesthetic, imperial adventure narrative, and detective fiction--to reveal that non-canonical texts, too, participate in the process by which narrative inevitably posits consciousness as its premise.
I draw upon Tyrus Miller's conception of late modernism to explicate how these authors' various engagements with established forms simultaneously perform immanent critique and narrative innovation. This dissertation also endorses David Lloyd's assertion that canonical narrative forms are instrumental in producing subjectivity within text and thereby act as a coercive exemplar for readers. I invoke several critics' engagements with conventional genres' narrative mechanics to explicate this process. By examining closely the admixture of narrative forms that churns beneath the surfaces of these texts, I aim to pinpoint how the deformation of conventionalized forms can yield a fresh and distinctly late modernist vision of selfhood.
en_US
University of Oregon
All Rights Reserved.
Elizabeth Bowen
Evelyn Waugh
late modernism
narrative
novel
Samuel Beckett
The "Knockings and Batterings" Within: Late Modernism's Reanimations of Narrative Form
Electronic Thesis or Dissertation
Ph.D.
doctoral
Department of English
University of Oregon

Huck, Kevin A., 1972-
2010-01-13T01:58:13Z
2010-01-13T01:58:13Z
2009-03
http://hdl.handle.net/1794/10087
xvi, 231 p. : ill. A print copy of this thesis is available through the UO Libraries. Search the library catalog for the location and call number.
Parallel applications running on high-end computer systems manifest a complex combination of performance phenomena, such as communication patterns, work distributions, and computational inefficiencies. Current performance tools compute results that help to describe performance behavior, as well as to understand performance problems and how they came about. Unfortunately, parallel performance tool research has been limited in its contributions to large-scale performance data management and analysis, automated performance investigation, and knowledge-based performance problem reasoning.
This dissertation discusses the design of a performance analysis methodology and framework which integrates scalable data management, dimension reduction, clustering, classification and correlation analysis of individual trials of large dimensions, and comparative analysis between multiple application executions. Analysis process workflows can be captured, automating what would otherwise be time-consuming and possibly error prone tasks. More importantly, process automation provides an extensible interface to the analysis process. The methods also integrate context metadata and a rule-based system in order to capture expert performance analysis knowledge about known anomalous behavior patterns. Applying this knowledge to performance analysis results and associated metadata provides a mechanism for diagnosing the causes of performance problems, rather than just summarizing results. Our prototype implementation of our data mining framework, PerfExplorer, and our data management framework, PerfDMF, are applied in large-scale performance studies to demonstrate each thesis contribution. The dissertation concludes with a discussion of future research directions.
Adviser: Allen D. Malony
en_US
University of Oregon
University of Oregon theses, Dept. of Computer and Information Science, Ph. D., 2009;
Parallel performance
Data mining
Dimension reduction
Clustering
Computer science
Knowledge support for parallel performance data mining
Thesis

Hessler, Julie
Lee, Woosung
Lee, Woosung
2012-10-26T04:00:24Z
2012-10-26T04:00:24Z
2012
http://hdl.handle.net/1794/12388
From the early 1860s Koreans appeared in the Russian Far East. Beginning in 1864, Koreans who received approval of the Russian authorities had begun to establish Korean villages in this region. During the 1860s and 1870s, the Russian government favored the Koreans' immigration into this area in order to develop the inhospitable lands in the Far East. After the 1880s, Russia's contradictory tendencies of accepting the Korean immigrants or prohibiting them coexisted. Nonetheless, Korean immigration continuously increased until the mid 1920s. The number of Korean immigrants reached approximately 200,000 in 1937. During September and November of 1937 all Koreans living in the Far East were deported to Central Asia because of the potential suspicion that they would serve as spies for Japan.
en_US
University of Oregon
All Rights Reserved.
Soviet Koreans history
The Koreans' Migration to the Russian Far East and Their Deportation to Central Asia: From the 1860s to 1937
Electronic Thesis or Dissertation

Phan, Christopher Lee, 1980-
2010-05-15T00:13:21Z
2010-05-15T00:13:21Z
2009-06
http://hdl.handle.net/1794/10367
xi, 95 p. : ill. A print copy of this thesis is available through the UO Libraries. Search the library catalog for the location and call number.
We investigate some homological properties of graded algebras. If A is an R -algebra, then E (A) := Ext A ( R, R ) is an R-algebra under the cup product and is called the Yoneda algebra. (In most cases, we assume R is a field.) A well-known and widely-studied condition on E(A) is the Koszul property. We study a class of deformations of Koszul algebras that arises from the study of equivariant cohomology and algebraic groups and show that under certain circumstances these deformations are Poincaré-Birkhoff-Witt deformations.
Some of our results involve the [Special characters omitted] property, recently introduced by Cassidy and Shelton, which is a generalization of the Koszul property. While a Koszul algebra must be quadratic, a [Special characters omitted] algebra may have its ideal of relations generated in different degrees. We study the structure of the Yoneda algebra corresponding to a monomial [Special characters omitted.] algebra and provide an example of a monomial [Special characters omitted] algebra whose Yoneda algebra is not also [Special characters omitted]. This example illustrates the difficulty of finding a [Special characters omitted] analogue of the classical theory of Koszul duality.
It is well-known that Poincaré-Birkhoff-Witt algebras are Koszul. We find a [Special characters omitted] analogue of this theory. If V is a finite-dimensional vector space with an ordered basis, and A := [Special characters omitted] (V)/I is a connected-graded algebra, we can place a filtration F on A as well as E (A). We show there is a bigraded algebra embedding Λ: gr F E (A) [Special characters omitted] E (gr F A ). If I has a Gröbner basis meeting certain conditions and gr F A is [Special characters omitted], then Λ can be used to show that A is also [Special characters omitted].
This dissertation contains both previously published and co-authored materials.
Committee in charge: Brad Shelton, Chairperson, Mathematics;
Victor Ostrik, Member, Mathematics;
Christopher Phillips, Member, Mathematics;
Sergey Yuzvinsky, Member, Mathematics;
Van Kolpin, Outside Member, Economics
en_US
University of Oregon
University of Oregon theses, Dept. of Mathematics, Ph. D., 2009;
Koszul properties
Noncommutative graded algebras
Yoneda algebra
Grobner bases
Homological algebra
Mathematics
Algebra, Homological
Algebra, Yoneda
Koszul algebras
Koszul and generalized Koszul properties for noncommutative graded algebras
Thesis

Van Alst, Laura Jane
2012-04-20T23:24:53Z
2012-04-20T23:24:53Z
2011-12
http://hdl.handle.net/1794/12191
ix, 44 p. : ill. (some col.)
The physical weathering of rock in cryogenic regions through a process called ice segregation is important for understanding subglacial processes, landscape evolution and cold region engineering. Ice segregation was examined by freezing water-saturated cores of Eugene Formation sandstone at temperatures between -15° and -2°C. Cores between -8° and -5°C took 30-45 minutes to crack, while cores at warmer or cooler temperatures took either more than 90 minutes or did not crack at all. Numerical modeling shows that cores break under isothermal conditions. The results of this study suggest that previous models in which temperature gradients are held responsible for driving flow towards growing cracks are incomplete. I introduce a new model of ice segregation to explain how premelted liquids from smaller pores can migrate and contribute to the growth of large cracks. This dissertation includes unpublished material.
Committee in charge: Alan Rempel, Chairperson;
Joshua Roering, Member;
Rebecca Dorsey, Member
en_US
University of Oregon
University of Oregon theses, Dept. of Geological Sciences, M.S., 2011;
rights_reserved
Geophysics
Earth sciences
Cryogenic weathering
Ice segregation
Laboratory Experiments in Cold Temperature Rock Deformation
Thesis

McPherson, Karen
Moneyang, Patrick
2013-10-10T23:19:29Z
2013-10-10T23:19:29Z
2013-10-10
http://hdl.handle.net/1794/13427
The deterioration of reason - defined as the faculty of thinking and its functioning in all human beings - is an essential question in Francophone Sub-Saharan literary and cinematographic fictions. This is one of many possible interpretations that can be derived from some novels and films produced during the period from 1950 to 2000 in this region. These cultural productions span an era marked in Africa by the "historical facts" of anticolonial struggles, decolonization, and (re) constructions of newly sovereign states that gained their independence from the European nations to which they had been subjected. The juxtaposition of these works leads to a critical realization: Half a century after the decolonization movements, African societies remain so dysfunctional that one is forced to ask if their inhabitants are still "normal," provided one can come to an agreement on what is normal. This speculation takes the form of a recurrent metaphor in the corpus: Africa is a continent ripped to shreds, irrevocably plunged into a dark night that has silenced reason.
Taking up this metaphor, not only as a theme but also as a theoretical concern, I argue that the metaphoric uses of the night are an indication of a more critical reality, which is the intellectual journey of a population that has leapt into a state of impoverishment. I approach impoverishment both as the state of being deprived and the process leading to this deprivation, and I maintain my earlier characterization of intellectual as a synonym of reason. In this line, I describe intellectual impoverishment as the (progressive) loss of consciousness and rationality that befalls a large population of the continent. This loss is portrayed through the appearance and proliferation of various paradoxical figures that embody the "spiritual death" of the people. One portrayal of this death, the transformation of African populations into zombies, then serves to flesh out the concept of intellectual impoverishment. Thus, this dissertation investigates the socio-political processes through which critical thinking is annihilated in Sub-Saharan Africa, through an analysis of literary and cinematographic fictions by francophone authors of this region.
This dissertation is written in French.
en_US
University of Oregon
All Rights Reserved.
AFRICA
ALIENATION
FRANCOPHONE
INTELLECTUAL
POSTCOLONIAL
ZOMBIES
La Misère Intellectuelle dans quelques Fictions Cinématographiques et Littéraires de l'Afrique Subsaharienne
Electronic Thesis or Dissertation
Ph.D.
doctoral
Department of Romance Languages
University of Oregon

Hoffmann, Leif, 1975-
2012-03-20T17:44:41Z
2012-03-20T17:44:41Z
2011-09
http://hdl.handle.net/1794/12026
xv, 372 p.
In my dissertation I argue that because the European Union and the United States of America have been largely treated as unique or at least special cases, both the literature on American-state building and that on European market integration have missed how close comparison alters both our descriptive views and social-scientific explanations of the shape of each polity. In particular, scholars have not sufficiently recognized that the European Union has gone further than the United States in many elements of the creation of a centralized, liberalized single market, nor have they produced explanations that account well for this development.
This study challenges the dominant assumption that the United States is generally more hierarchical and centralized than the European Union and more of a single free market in the sense of fewer allowable trade barriers. By analyzing the rules of market integration in services (over 70% of GDP), public procurement (15 - 20% GDP) and the regulated goods markets (goods like elevators with their own regulatory regimes), I demonstrate that in all these major cases the European Union has adopted rules that open exchange to competition more than the United States. While the actual integration of flows on the ground is still generally less across European states than American ones, the political rules are more - and more liberally - integrated in Europe.
I offer an institutional and ideational argument to explain these differences, with two main parts. First, there is no American parallel to the institution of the European Commission, which is mandated to continually push liberalization forward. My research shows that Commission leadership has been critical to each of the examined cases. Second, broader norms of legitimate governance favor centralized authority - including liberalizing central authority - more in the European Union than in the United States. Despite all the criticism we hear of the European Union, the basic notion of federal governance of market integration is far more strongly accepted across Europe at both elite and mass levels than in the United States. As interview evidence in this study displays, many Americans consistently object to any role for the federal government.
Committee in charge: Dr. Craig Parsons, Chairperson;
Dr. Gerald Berk, Member;
Dr. Lars Skålnes, Member;
Dr. Alexander B. Murphy, Outside Member
en_US
University of Oregon
University of Oregon theses, Dept. of Political Science, Ph. D., 2011;
rights_reserved
Plate Tectonics
European studies
Social sciences
Earth sciences
European Union
Federalism
Free market
Integration theories
Protectionism
United States
Land of the Free, Home of the (Un)Regulated: A Look at Market-Building and Liberalization in the EU and the US
Thesis

Hulse, David
Enright, Christianne
2013-07-11T20:12:45Z
2013-07-11T20:12:45Z
2013-07-11
http://hdl.handle.net/1794/12997
Over the past decade, ecosystem services has become a familiar term. Definitions vary but the central idea is that society depends on and is enhanced by earth's resources. Concerns about natural resource depletion and degradation have motivated researchers to move from concept to operation and real-world change. Since the late 1990s, attention has been directed at characterizing the monetary value of ecosystem services to influence decision-making processes. This research has been dominated by the disciplines of ecology and economics with the underlying assumption that the integration of these disciplinary approaches will provide the necessary operational pathways forward. The perspectives of ecology and economics are crucial but the unique qualities of ecosystem services suggest the need to consider other approaches and a willingness to look beyond existing models and disciplinary boundaries.
I propose a landscape approach to ecosystem services in which they play a role in the intentional coevolution of social/ ecological systems. I apply this approach to explore the potential for floodplain agricultural landscapes to provide ecosystem services in a 65,000 acre study area located in Oregon's agriculturally-dominated southern Willamette Valley. The landscape's biophysical processes are represented by three ecosystem services: non-structural flood storage, carbon sequestration and floodplain forest. These are quantitatively evaluated using a geographic information system. One aspect of the landscape's sociocultural processes is explored through qualitative interviews with farmers and profiles of the crops they commonly grow. The biophysical and sociocultural research components are integrated through an alternative futures framework to compare the ca. 2000 landscape with a 2050 future landscape in which agricultural production includes ecosystem services.
In the 2050 landscape, the synthesis results show where all three ecosystem services are simultaneously provided on 2,981 acres, and where increases in carbon sequestration and floodplain forest are simultaneously provided on an additional 4,841 acres. For the identified acres, the annual income from present-day conventional crop production is provided as a first approximation of the monetary income that farmers would consider for producing ecosystem services.
en_US
University of Oregon
All Rights Reserved.
ecosystem services
A Landscape Approach to Ecosystem Services in Oregon's Southern Willamette Valley Agricultural Landscape
Electronic Thesis or Dissertation
Ph.D.
doctoral
Department of Landscape Architecture
University of Oregon

Smith, Kara C., 1974-
2008-11-21T22:30:52Z
2008-11-21T22:30:52Z
2008-06
http://hdl.handle.net/1794/7889
x, 131 p. A print copy of this thesis is available through the UO Libraries. Search the library catalog for the location and call number.
This study centers on contentions within the U.S. food system. The policy conflict
arises between the conventional food system and emerging issues of local food security.
The framework of the conventional food system is contested by groups claiming that
individual food security would increase if our food system were re-localized and
facilitated by a food policy council of local food system stakeholders. Following Benford
and Snow (2000), this study investigates the political, cultural and historical contexts of
Lane County, Oregon's food system and assesses how food security is re-framed at the
local level as community food security. Drawing upon the concepts of "core framing
tasks" and discursive and strategic processes, this study illustrates how the flexibility of
the community food security frame enables the rebuilding of the local food system,
borrowing systems thinking from local watershed councils. Drawing on systems thinking
enables a variety of combinable and re-combinable relationships among stakeholders
from the diversity of food systems, such as the conventional, sustainable, alternative and
emergency food systems.
Adviser: Gerald
Berk
en_US
University of Oregon
University of Oregon theses, Dept. of Political Science, M.S., 2008;
The Lane County Food Policy Council and Re-framing Food Security
Thesis

Tucker, Don
Nelson, Joseph
Nelson, Joseph
2012-10-26T04:08:05Z
2012-10-26T04:08:05Z
2012
http://hdl.handle.net/1794/12464
Current language mapping protocols for neurosurgical planning are invasive, expensive, and not suitable for all surgical candidates. We investigated the potential of dense array EEG to determine hemispheric dominance for language and localize current sources of semantic and lower level language functions in the brain using a semantic decision task, a phonological decision task, and an acoustic decision task. Source estimates of N400-window ERPs (N365, N480) and the Late Positive Complex (LPC) localized strongly to medial temporal regions. Overall source estimates revealed a slight left lateralized network, with more posterior engagement for the semantic condition and more anterior engagement for the phonological condition. Source localization of the resulting t-test wave from the semantic - phonological highlighted a stronger left lateralized pattern of activation encompassing more of the semantic network. As a first pass these results are promising, but need to be investigated on individual subject ERPs.
en_US
University of Oregon
All Rights Reserved.
EEG
Language
Localization
Mapping
Neurosurgical
Presurgical
Language Mapping with Dense Array EEG Source Localization: Implications for Neurosurgical Planning
Electronic Thesis or Dissertation

Dunn, Paul Hayven, 1981-
2012-03-24T00:34:17Z
2012-03-24T00:34:17Z
2011-09
http://hdl.handle.net/1794/12067
xix, 166 p. : ill.
The nemertean worm Carcinonemertes errans is an egg predator on the Dungeness crab, Cancer magister, an important fishery species along the west coast of North America. This study examined the estuarine distribution and larval biology of C. errans. Parasite prevalence and mean intensity of C. errans infecting C. magister varied along an estuarine gradient in the Coos Bay, Oregon. Crabs nearest the ocean carried the heaviest parasite loads, and larger crabs were more heavily infected with worms. Seasonal infection patterns were seen at some sites within the bay. Crabs from coastal waters carried significantly more worms than did crabs from the bay, suggesting that the estuary may be acting as a parasite refuge for estuarine crabs. In laboratory experiments, C. errans all died in salinities below 10 within 6 days, but C. errans showed some tolerance to salinities 20 and above. These results suggest that salinity alone does not likely account for the estuarine gradient of C. errans in Coos Bay.
Larvae of C. errans raised from hatching never settled in the laboratory. Competent larvae taken in plankton tows were morphologically distinct from larvae raised in laboratory cultures and did settle successfully on C. magister under laboratory conditions. Initial settlement was reversible within a 24-hour window. After 48 hours, a non-reversible metamorphosis occurred wherein worms lost one pair of eyes and the propensity to swim. In field settlement experiments, C. errans was capable of infecting hosts from the water column and preferred to settle on crabs already infected with juvenile worms, although this preference was density dependent. In monthly plankton tows, larvae of C. errans were found only between August and November, suggesting a long larval life for this species. Larvae did not feed under laboratory conditions, nor did they absorb dissolved organics. When exposed to a natural angular light distribution, larvae of C. errans were rarely photopositive. Larvae were most sensitive to blue-green light. Low intensity light invoked a photonegative response. Larvae were geopositive at hatching but geonegative thereafter.
Committee in charge: Brendan Bohannan, Chairperson;
Craig Young, Advisor;
Svetlana Maslakova, Member;
Alan Shanks, Member;
William Orr Outside, Member
en_US
University of Oregon
University of Oregon theses, Dept. of Biology, Ph. D., 2011;
rights_reserved
Ecology
Oncology
Zoology
Parasitology
Health and environmental sciences
Biological sciences
Cancer magister
Carcinonemertes errans
Larval biology
Parasite refuge
Larval Biology and Estuarine Ecology of the Nemertean Egg Predator Carcinonemertes errans on the Dungeness Crab, Cancer magister
Thesis

Emlet, Richard
Rimler, Rose
2014-06-17T19:44:44Z
2014-12-29T21:12:32Z
2014-06-17
http://hdl.handle.net/1794/17924
The Olympia oyster, Ostrea lurida. was overharvested in the early 20th century and is now the focus of restoration efforts in estuaries along the west coast of North America. These efforts would be aided by a better understanding of larval abundance patterns, settlement behavior, and post-settlement performance of oysters in estuaries throughout its range. In Coos Bay, Oregon, all three of these components of the oyster life cycle were investigated at multiple sites. Like adult oysters, larvae were restricted to the upper portion of the bay, although larvae were supplied to sites in the upper bay where settlement was low. Settlement and post-settlement growth was highest at sites of high adult density. These results indicate that in O. lurida, as in many other marine invertebrates, the adult population is subject to bottlenecks at the larval and juvenile stage that can vary spatially.
This thesis contains previously unpublished co-authored material.
en_US
University of Oregon
All Rights Reserved.
Coos Bay
Olympia oyster
Ostrea lurida
population dynamics
restoration
settlement
Larval Supply, Settlement, and Post-Settlement Performance as Determinants of the Spatial Distribution of Olympia Oysters (Ostrea lurida) in Coos Bay, OR
Electronic Thesis or Dissertation
M.S.
masters
Department of Biology
University of Oregon